AttrTable table = new AttrTable(frame);
AttrTableDrawManager manager = new AttrTableDrawManager(canvas, table, attrs);
manager.attributesSelected();
HorizontalSplitPane west = new HorizontalSplitPane(toolbar, table, 0.5);
VerticalSplitPane all = new VerticalSplitPane(west, canvas, 0.3);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().add(all, BorderLayout.CENTER);
frame.pack();
frame.setVisible(true);